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Highly efficient polymer‐stabilized palladium heterogeneous catalyst: Synthesis, characterization and application for Suzuki–Miyaura and Mizoroki–Heck coupling reactions
Author(s) -
Targhan Homa,
Hassanpour Alireza,
Bahrami Kiumars
Publication year - 2019
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5121
Subject(s) - chemistry , palladium , tmpta , catalysis , polymer chemistry , polymer , itaconic acid , monomer , polymerization , coupling reaction , trimethylolpropane , suzuki reaction , ligand (biochemistry) , heck reaction , organic chemistry , acrylate , biochemistry , receptor , polyurethane
A suitable approach to stabilize palladium nanoparticles (Pd NPs), with an average diameter of 3–4 nm, on magnetic polymer is described. A new magnetic polymer containing 4′‐(4‐hydroxyphenyl)‐2,2′:6′,2″‐terpyridine (HPTPy) ligand was prepared by the polymerization of itaconic acid (ITC) as a monomer and trimethylolpropane triacrylate (TMPTA) as a cross‐linker and fully characterized. Pd NPs embedded on the magnetic polymer were successfully applied in Suzuki–Miyaura and Mizoroki–Heck coupling reactions under low palladium loading conditions, and provided the corresponding products with excellent yields (up to 98%) and high catalytic activities (TOF up to 257 hr −1 ). Also, the catalyst can be easily separated and reused for at least consecutive five times with a small drop in catalytic activity.